[ If only you knew what she and Luke do in private, Sokka. If only you knew. Xion's still suspicious, of course, but doesn't make the link because ... dancing only makes her think of ballroom dancing, which she doesn't connect to innuendo in the slightest. ]

Sure you are! But okay. I don't really know yet! I've just been thinking about it. I kind of have an idea, but I don't know how to write it down, and I can only sing it!